Santa Rita Experimental Range
Repeat Photography



site map

Photo Station #304



JAN19490 1949 1

Photo Archive No. 304.1.1949

A49-97. Photo station 304 looking southeast. Agl, Tca, Adi, Hca, Afr, Bwr, Pve, cacti. Grasses in fair condition, though good many dead clumps.

Download Photo (2,405,079 bytes)



JAN19880 JAN 1988 1

Photo Archive No. 304.1.1988.01

PS 304. Azimuth 168. Jan. 8, 1988. RFB. Canon AE-1 35mm camera. 35mm WA lens. Robert F. Buttery.

Download Photo (1,332,358 bytes)



APR20001 APR 2000 1

Photo Archive No. 304.1.2000.04

PS 304. April 24, 2000, 2:15 p.m. Facing south. Azimuth 168. Pasture 21. ASA 135, Plus X film. 35mm lens focal length. Fencepost marked with 304; south side of road about 40'; near road to weather station. All mesquite alive. Eragrostis lehmanniana dominant. Muhlenbergia porteri under small mesquite in foreground. Scattered Haplopappus tenuisectus. Setaria macrostachya, Digitaria californica, Sporobolus, Muhlenbergia porteri under large mesquite. M. McClaran.

Download Photo (2,579,746 bytes)



304_1_2007_03 MAR 2007 1

Photo Archive No. 304.1.2007.03

PS. 304. 28 March 2007. Facing south, Azimuth 168. Pasture 21. Elevation 1245 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, camera above. Mesquite alive, about 50% of burroweed dead. Prickly pear and barrel cacti present. Small Lehmann lovegrass dominant with cottontop, under mesquite find cottontop, Setaria, Sporobolus cryptandrus and bush muhly. Compared to 2000, less grass and burroweed, but more prickly pear now. M. McClaran photographer, A. Nafus assistant.

Download JPEG Photo (6,549 KB)

Download RAW Photo (17,332 KB)



304_1_2012_03 MAR 2012 1

Photo Archive No. 304.1.2012.03

PS. 304. 12 March 2012, 2:05 PM. Facing south, Azimuth 168. Pasture 21. Elevation 1240 m. ISO 100, 35mm focal length, Canon 5D Mark II Digital Camera. Witness present, camera above. Mesquite alive, and some 2011 leaves still present. Many burroweed skeletons. Prickly pear and barrel cacti present. Lehmann lovegrass dominant with cottontop, under mesquite find cottontop, plains bristlegrass, sand dropseed, black grama, and bush muhly. Compared to 2007, more grass, more small mesquite, and more prickly pear now; but continued decline of burroweed; and erosion channel in left foregrounds has filled. M. McClaran photographer, A. Dalke and K. Hawkes assistants.

Download JPEG Photo (16,019 KB)

Download RAW Photo (27,941 KB)



19492 1949 2

Photo Archive No. 304.2.1949

A49-96. 1949. Photo station 304 looking southwest.

Download Photo (2,485,200 bytes)



APR20002 APR 2000 2

Photo Archive No. 304.2.2000.04

PS 304. April 24, 2000, 2:15 p.m. Facing southwest. Azimuth 210. Pasture 21. ASA 135, Plus X film. 35mm lens focal length. Fencepost marked with 304; south side of road about 40'; near road to weather station. Large trees in 1948 cut down, stumps present. IBP rain gauge present. All Eragrostis lehmanniana; few Haplopappus tenuisectus. All mesquite alive, beginning to leaf out. M. McClaran.

Download Photo (1,811,158 bytes)



304_2_2007_03 MAR 2007 2

Photo Archive No. 304.2.2007.03

PS. 304. 28 March 2007. Facing southwest, Azimuth 210. Pasture 21. Elevation 1245 m. ISO 100, 35mm focal length, Canon 5D Digital Camera. Witness present, camera above. Mesquite alive, about 50% of burroweed dead. Prickly pear and barrel cacti present. Small Lehmann lovegrass dominant with cottontop and tanglehead, under mesquite find cottontop, Setaria and Sporobolus cryptandrus. At center midground there are stumps of 2 large mesquite that were present at top center of 1949 photo were probably cut in 1960s for D. Cable’s soil moisture study, and adjacent to those stumps find soil access tubes and increasing distance from stump. Compared to 2000, less grass and burroweed, but more small mesquite and prickly pear now. M. McClaran photographer, A. Nafus assistant.

Download JPEG Photo (5,786 KB)

Download RAW Photo (16,770 KB)



304_2_2012_03 MAR 2012 2

Photo Archive No. 304.2.2012.03

PS. 304. 12 March 2012, 2:00 PM. Facing south, Azimuth 210. Pasture 21. Elevation 1240 m. ISO 100, 35mm focal length, Canon 5D Mark II Digital Camera. Witness present, camera above. Mesquite alive, and some 2011 leaves still present. Many burroweed skeletons. Prickly pear, cholla and barrel cacti present. Lehmann lovegrass dominant, with cottontop, black grama and tanglehead in open, and under mesquite find cottontop, plains bristlegrass and sand dropseed. At center midground there are stumps of 2 large mesquite that were present at top center of 1949 photo were probably cut in 1960s for D. Cable’s soil moisture study, and adjacent to those stumps find soil access tubes at increasing distance from stump. Compared to 2007, more grass and prickly pears, and increase in size of small mesquite; and continued decline of burroweed. M. McClaran photographer, A. Dalke and K. Hawkes assistants.

Download JPEG Photo (13,863 KB)

Download RAW Photo (27,154 KB)



[Return to SRER Home Page]

Last updated -August 2012
Mitchel McClaran - mcclaran@u.arizona.edu